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 Post subject: Re: old x86 assembly code but apparently wrong comment and s
PostPosted: Fri Oct 19, 2018 3:33 pm 
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MichaelPetch wrote:
Schol-R-LEA wrote:
Now, I don't know where you got this code - it is from Minix 1.x or 2.x, but I have found it listed incorrectly as Minix 3.x in at least one place - but I can tell you that this shouldn't be possible. To the best of my knowledge, the ACK assembler (like the PC/ix assembler it was based on) was never re-written to support 32-bit registers - it was a real mode assembler, period. Using the E* registers (the 32-bit 'extended' version of AX, BX, SI, DI, and so forth) shouldn't be possible with that assembler.

I happened to look through all the branches on Minix3.org for Minix3 and found that vidcopy.s still seemed to be used up through version 3.1.3. That seems to have changed in 3.1.4.


Ah, OK, then, I retract my comment.

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